/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.oak.spi.commit;
import javax.annotation.Nonnull;
import org.apache.jackrabbit.oak.api.CommitFailedException;
import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
import org.apache.jackrabbit.oak.spi.state.NodeState;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* This commit hook implementation processes changes to be committed
* using the {@link Editor} instance provided by the {@link EditorProvider}
* passed to the constructor.
*
* @since Oak 0.7
* @see <a href="http://jackrabbit.apache.org/oak/docs/nodestate.html#Commit_editors"
* >Commit editors</a>
*/
public class EditorHook implements CommitHook {
private final EditorProvider provider;
public EditorHook(@Nonnull EditorProvider provider) {
this.provider = checkNotNull(provider);
}
@Override @Nonnull
public NodeState processCommit(
@Nonnull NodeState before, @Nonnull NodeState after)
throws CommitFailedException {
checkNotNull(before);
checkNotNull(after);
NodeBuilder builder = after.builder();
Editor editor = provider.getRootEditor(before, after, builder);
CommitFailedException exception =
EditorDiff.process(editor, before, after);
if (exception == null) {
return builder.getNodeState();
} else {
throw exception;
}
}
}